ViewSonic VE710b-4 Service Manual page 81

10.5. MCU (Realtek Scaler CMO Panel)
D113 R124
1K
1N4148
1
R123
1K
C117
10uF/16V
VCPU
C122
R128
100nF
4K7
I105
1 8
A0 VCC
WP
2 7
A1 WP
3 6
A2 SCL
4 5
GND SDA
24LC16
MUTE
ST_DET1
P104
1
2
3
4
5
6
7
8
CON8
C131 C130 C129
NC NC NC
ViewSonic Corporation
VCPU
RTD_RESET
D115
Q101
2
1N4148
MMBT3906
3
C118
NC/10uF/16V
X101
12MHz R127 C119 I104
1M 22pF
12
C121
22pF
11
R129
7
4K7
19
R134 100 14
R135 100
13
27
26
16
9
30
31
LED G 32
LED O
33
VCC3V3 MTV312M64
R171
12V
10K
R141
9.03K
R147
3.32K
R156 100 select
R155 100 down
up
R154 100
R153 100 menu
R152 100 green
R151 100 orange
R150 100 power
C128 C126 C125 C127
NC NC NC NC
78
VE710s-4_VE710b-4
Confidential - Do Not Copy
VCC3V3
VCPU
R125 C116
0 RN1 RN2
100nF
10K X4
10K X4
menu
3
P5.0
UP
2
P5.1
DOWN
1
X1 P5.2
42 select
P5.3
power
41
P5.4
40
X2 P5.5
34
P5.6
39
RESET DA8/HLFHO
38
DA9/HALFV
17
P1.0
18
P1.1
20
INT0/P3.2 P1.2
21
P1.3
22
P1.4
23
ISCL/P3.5/T1 P1.5
24
ISDA/P3.4/T0 P1.6
25
P6.0/AD0 P1.7
35
P6.1/AD1 DA7
VCC3V3
36
P6.2 P4.0
37
P6.3 P4.1
WP
15
P6.4 P4.2
R138 NC
P6.5
28
P6.6 P3.1/TXD
29
P6.7 P3.0/RXD
R143
0
VCC3V3
Q102
R149
MMBT3906
2
4K7 LED_O
1
3
C123
orange
NC
VCC3V3
Q103
MMBT3906
R157
2
LED_G
1 4K7
3
GREEN C124
NC
VCC3V3
RN4
10K X4
R122 R121
10K 10K
R133 1K
VCPU R137
NC
R140 R139
2K2 2K2
R144 100
R145 100
3 (C)
1 (B) 2 (E)
onPanel_3V3
onBacklight
RTD_SCSB
RTD_SCLK
RTD_SDO_OR_SDI
DDC_CLK
DDC_DAT